Induction Coil with Dynamically Variable Coil Geometry

摘要

A solenoidal induction coil with dynamically variable coil geometry is provided for inductively welding or heating continuous or discontinuous workpieces passing through the solenoidal induction coil in a process line. The coil geometry can change, for example, as the outer dimension of the workpiece passing through the solenoidal induction coil changes or as non-continuous workpieces pass through the solenoidal induction coil in an induction heating or welding process line.

主权项

1. A solenoidal induction coil with a dynamically variable interior cross sectional opening comprising:
a first coil segment and a second coil segment, the first coil segment having a first power termination end and a first adjustable coil segment end opposing the first power termination end, the second coil segment having a second power termination end and a second adjustable coil segment end opposing the second power termination end, the first power termination end and the second power termination end fixedly secured adjacent to each other and electrically separated from each other, the opposing first and second adjustable coil segment ends movably located next to each other in a closed-segments position to form an electrically continuous connection between the opposing first and second adjustable coil segment ends; an adjustable coil segment electrically connecting the opposing first and second adjustable coil segment ends; and an adjustable coil segment assembly comprising a coil segments separator for providing an adjustable coil segment ends distance between the opposing first and second adjustable coil end segments, and an actuator for dynamically adjusting the adjustable coil ends distance whereby the interior cross sectional opening of the solenoidal induction coil is dynamically varied between the closed-segments position when the adjustable coil segment is short circuited and a variable opened-segments position when the adjustable coil segment forms an electrically continuous connection between the opposing first and second adjustable coil segment ends.